EEVblog Electronics Community Forum
Products => Other Equipment & Products => Topic started by: jancumps on June 08, 2018, 04:47:04 pm
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I'm looking for suggestions for a commercial America to Europe converter. For household, not Lab.
It should convert 110 V 60 Hz to 220/240, 50 Hz. It needs to deliver around 20 Watt.
The shape of the output signal isn't very critical. It has to be sinosodialish, but doesn't have to win a beauty contest.
It has to drive a synchronous AC motor so frequency stability at the output side is more important.
Drift over time is not critical, just not a lot of short term frequency drift because the receiving side is a turntable.
I would appreciate if you know of such a product.
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You could, off course, tie a 12V converter to a car inverter and call it quits. Probably what's going on inside an all-in-one anyways...
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I've seen a few ebay offers that do that. It is an option that I keep open.
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Some higher-end UPSs (i.e. Liebert GXT2) have the ability to output a different frequency than the input. Voltage conversion would have to be done with an external transformer. But unless you can find a UPS really cheap, the car inverter would probably be a more cost-effective solution.
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Out of the box idea; 8)
The power requirements are low, so I am tempted to suggest a class-D audio amplifier, feeding a step up transformer.
The frequency stability and the waveform distortion would be dependent on the source feeding the input.
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110 V ?
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A VFD would work if you can find one cheap enough.